Tire for vehicle-wheels.



Sil

Specification of Letters Patent.

Etntented Agora iii,

Application tiled May 16, 191e. Serial No. 839,066.

To all whom it may onrern:

Be it known that l, "Vinijiimi Denny? sub- ,jeet of the King of GreetBritain and lire land, residingat London, lV., llnglnnd, have inventedcertain new and useful improvements in Tires for `Vehiele-ldf'heels, ofwhich the following' is u specification.

'The present invention relates to tires Jfor vehicle wheels oi' that.type in which there are vertical longitudinal walls. lt consists in :irubber tire which when in position on the rim has two inner wallsextending from or near the base to the inside oi' the crown so as toforni three uir chambers, the central chamber' being formed by thespreading apart of the two inner walls. The seid nir chambers may beinfieted by known means or not es desired.

Referring to Figure l ot the accompany ing' drawings this illustrates intransverse section one form of tire Constructed in :ieeordanee with thepresent invention and mounted in :t eleneher divided rim. ln thisembodiment of the i vention a seperate trend is applied as iudiented bythe hori zontel dotted line, and the inner wells entend from the base tothe inside of the crown of the tire.

Fig. H illustrates in transverse section e. slightly inodied forni ottire, showing the wells spleyed as the tire Comes from the vuleanizirgmolds, in which n seperate treed has been dispensed with and the outerwelis are so shaped that non-skid ridges or corrugetions are formed onthe tinished tire and in which the inner walls when brought torfvetlierdo not extend from the base as sl'iown in Fig. i but from neer the bese:is shown in Figs. H and. Hi.

iigl lili 'further iilustrntes in transverse section the tire shown inFig. H with the ends of its spleyed walls brought together in theposition they would occupy in n elencher divided rim. d

in all the drawings similar numerals of reference refer to like ports.

usually manufacture ,the ti *es in parts (es indicated by dotted linesin l11 igs. "i end Thus the outer walls, fi, 'i be nis-Clo separatelyand the inner wells 2. i3 in one niece, the other parts o? the weissbeing; than brought together und vulcanized elo-ng' the surfacesindicated bv the vertieel dotted lines in Figs. li and ll. The trend 3nifty then be applied es shown in Fin. "l, r, e seperate treed may bedispensed with it the outer edge of the wells are suitably shaped sothat nomskid ridges or eorruujetions ero formed ou the finished tiro :isindicated in the figures. (ir, :my convenient known torni ot tread maybe employed. Cores 4- ot' bord rubber and canvas, us iilustrstod in Fig.l, muy be used to reinforce the rlenehed bends of the tire.

lf desired any of the known wedging devices, operated by screws orotherwise pussing; through the riin und telly, muy be pro vided to torcethe ieet of the inner well or walls tightly against those o' the outerwalls und to prevent the tire creeping' on the riin. The air chambers 5,5, 5 may be inflated or not :is desired und holes G, 6 muy be formed inthe inner walls 2, 2 in order that the pressure in the three eluunbersmuy be equalized. Under ordinary eireuinstnn excellent results muy beobtained without inizition but in Ceses of heavy traction u certaindegree of inflation is sometimes found advisable.'

The splziying of the wells :is illustrated in Fig. l', not only stiiiensthe tire, when the spleyed ends ure brought together in the elenelierdivided riin, but by the cross ten sion so given to the tiro assists innmintuiningr the ioeltiirgr bends in the elniunols pro- "idefl in theeleuelur riin Jor their reception und insures nir tight joints betweenthe outer and inner walls. This niuintenuiwo oi` the lockingA beads inthe ehunnels provided in the eleneher rim for their reception is alsonssist'ed by the sprmldiug' :xlmrt o? the two inner wells 'throughout`heir length or throughout the grenier purl; of their length.

By the shortening; ot the inner wall or wells from near the base (so esto leave :t space 7 before tightening up) ns illustrated in Fig. llinstead of Yfron; the base :is illustrated in Fig. i', l find iroinpruetieul experience that l gein e distinct advnntzi Hoving thusdescribed my invention what i claim es new and desire to secure byletters Potent isl. A tire tor vehicle wheels having; two vertical innerwells dividing the interior oi the tire into three chambers, the lowerends of the inner welle terminating above the lower ends oi' die outerwalis and thereby providing :i space below the lower ends of said innerwells before tightening up.

2. t tire for vehicle wheels having; outer walls end inner welisdividing the interior of the tire into o series ot longitudinallydisposed chambers and the inner ends et? the inner .vulis being adaptedto be inter posed between he inner ends of the outer walls :uid'Lermiueiging ebvve Jdie inner elia s 0i? the outer weils therebyproviding :i space below die inner ends of sniii .inner weile beforetightening up,

3. A 'tire for vehicle wheels having einer walls und inner wallsdividing the interior uf he tire into :i series of longituiiiuailydiepeseii ehuiiiheis und the inner ends of said inner Nails heiligadapted to be interposed between the inner ends of the outer weile whenlocked togethei, Suid walls being normsly spayeri.

4i. A tire for vehicie Wheeis having oue:

Weils and inner weils dividing the inneivioi of the tire into a se'iesof longitudinally disposed chambers, the said imiei' Walls being united:it ti e outer ends to the tread and having' the inner ends free and:idaped to be iiieipeeeii between he inner ends of Said. outer williewhen locked together, the said walls being Donnelly sphiyed,

In witness whereoi .il have signed .my nume to vthis speeiicatieii iiithe presence o two 2.5

W'imeeses:

E. Renkum? Tenn @Mein

